55517422471555 has 8 divisors (see below), whose sum is σ = 72677353053744. Its totient is φ = 40376307252000.

The previous prime is 55517422471549. The next prime is 55517422471561.

55517422471555 is nontrivially palindromic in base 10.

55517422471555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55517422471549) and next prime (55517422471561).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55517422471555 - 2¹¹ = 55517422469507 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55517422471555.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504703840596 + ... + 504703840705.

It is an arithmetic number, because the mean of its divisors is an integer number (9084669131718).

Almost surely, 2^{55517422471555} is an apocalyptic number.

55517422471555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55517422471555 is a deficient number, since it is larger than the sum of its proper divisors (17159930582189).

55517422471555 is a wasteful number, since it uses less digits than its factorization.

55517422471555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009407681317.

The product of its digits is 49000000, while the sum is 58.

The spelling of 55517422471555 in words is "fifty-five trillion, five hundred seventeen billion, four hundred twenty-two million, four hundred seventy-one thousand, five hundred fifty-five".